结果表明：脱毒马铃薯的群体光合速率、群体叶源量、干物重量、叶面积重量、叶面积系数均优于未脱毒处理。
The results showed the mass photosynthetic rate, mass leaf source amount, dry matter weight, leaf areas weight and index of virus-free potato were superior to that of potato.
本工作用重量法测量了水蒸气和液体水在十一种高聚物薄膜中的透过速率。
The permeability constants of both liquid water and water vapour through eleven polymer films have been measured at three temperatures by weighing method.
设计出一款体积 小、重量轻、成本低、性能稳定的低速率误码测试仪。
It has advantages of small volume, light weight, high efficiency, wide voltage stabilizing range, no waveform distorion etc.
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